Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV

A measurement of the groomed jet mass in PbPb and pp collisions at a nucleonnucleon center-of-mass energy of 5.02 TeV with the CMS detector at the LHC is presented. Jet grooming is a recursive procedure which sequentially removes soft constituents of a jet until a pair of hard subjets is found. Th...

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Main Authors:	Sirunyan, A. M., Tumasyan, A. R., Adam, Wolfgang, Ambrogi, Federico, Asilar, Ece, Md. Ali, Mohd. Adli
Format:	Article
Language:	English English
Published:	Springer Nature 2018
Subjects:	Q Science (General) QC Physics
Online Access:	http://irep.iium.edu.my/69693/ http://irep.iium.edu.my/69693/ http://irep.iium.edu.my/69693/ http://irep.iium.edu.my/69693/1/69693_Measurement%20of%20the%20groomed%20jet%20mass%20in%20PbPb%20_article.pdf http://irep.iium.edu.my/69693/2/69693_Measurement%20of%20the%20groomed%20jet%20mass%20in%20PbPb%20_scopus.pdf

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spelling	iium-696932019-07-15T01:55:55Z http://irep.iium.edu.my/69693/ Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Q Science (General) QC Physics A measurement of the groomed jet mass in PbPb and pp collisions at a nucleonnucleon center-of-mass energy of 5.02 TeV with the CMS detector at the LHC is presented. Jet grooming is a recursive procedure which sequentially removes soft constituents of a jet until a pair of hard subjets is found. The resulting groomed jets can be used to study modifications to the parton shower evolution in the presence of the hot and dense medium created in heavy ion collisions. Predictions of groomed jet properties from the pythia and herwig++ event generators agree with the measurements in pp collisions. When comparing the results from the most central PbPb collisions to pp data, a hint of an increase of jets with large jet mass is observed, which could originate from additional medium-induced radiation at a large angle from the jet axis. However, no modification of the groomed mass of the core of the jet is observed for all PbPb centrality classes. The PbPb results are also compared to predictions from the jewel and q-pythia event generators, which predict a large modification of the groomed mass not observed in the data. Springer Nature 2018-10-01 Article NonPeerReviewed application/pdf en http://irep.iium.edu.my/69693/1/69693_Measurement%20of%20the%20groomed%20jet%20mass%20in%20PbPb%20_article.pdf application/pdf en http://irep.iium.edu.my/69693/2/69693_Measurement%20of%20the%20groomed%20jet%20mass%20in%20PbPb%20_scopus.pdf Sirunyan, A. M. and Tumasyan, A. R. and Adam, Wolfgang and Ambrogi, Federico and Asilar, Ece and Md. Ali, Mohd. Adli (2018) Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV. Journal of High Energy Physics, 2018 (10). pp. 1-35. ISSN 1029-8479 https://link.springer.com/content/pdf/10.1007%2FJHEP10%282018%29161.pdf 10.1007/JHEP10(2018)161
repository_type	Digital Repository
institution_category	Local University
institution	International Islamic University Malaysia
building	IIUM Repository
collection	Online Access
language	English English
topic	Q Science (General) QC Physics
spellingShingle	Q Science (General) QC Physics Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV
description	A measurement of the groomed jet mass in PbPb and pp collisions at a nucleonnucleon center-of-mass energy of 5.02 TeV with the CMS detector at the LHC is presented. Jet grooming is a recursive procedure which sequentially removes soft constituents of a jet until a pair of hard subjets is found. The resulting groomed jets can be used to study modifications to the parton shower evolution in the presence of the hot and dense medium created in heavy ion collisions. Predictions of groomed jet properties from the pythia and herwig++ event generators agree with the measurements in pp collisions. When comparing the results from the most central PbPb collisions to pp data, a hint of an increase of jets with large jet mass is observed, which could originate from additional medium-induced radiation at a large angle from the jet axis. However, no modification of the groomed mass of the core of the jet is observed for all PbPb centrality classes. The PbPb results are also compared to predictions from the jewel and q-pythia event generators, which predict a large modification of the groomed mass not observed in the data.
format	Article
author	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_facet	Sirunyan, A. M. Tumasyan, A. R. Adam, Wolfgang Ambrogi, Federico Asilar, Ece Md. Ali, Mohd. Adli
author_sort	Sirunyan, A. M.
title	Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV
title_short	Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV
title_full	Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV
title_fullStr	Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV
title_full_unstemmed	Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV
title_sort	measurement of the groomed jet mass in pbpb and pp collisions at √snn=5.02 tev
publisher	Springer Nature
publishDate	2018
url	http://irep.iium.edu.my/69693/ http://irep.iium.edu.my/69693/ http://irep.iium.edu.my/69693/ http://irep.iium.edu.my/69693/1/69693_Measurement%20of%20the%20groomed%20jet%20mass%20in%20PbPb%20_article.pdf http://irep.iium.edu.my/69693/2/69693_Measurement%20of%20the%20groomed%20jet%20mass%20in%20PbPb%20_scopus.pdf
first_indexed	2023-09-18T21:38:56Z
last_indexed	2023-09-18T21:38:56Z
_version_	1777413008830496768

Measurement of the groomed jet mass in PbPb and pp collisions at √sNN=5.02 TeV

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